This lesson is an introduction to disposal of sludge by landfill. A brief explanation of the complete process is provided, including discussions of sludge suitability, site selection, method selection and operation, site closure, and ultimate reuse. The lesson includes an instructor's guide and student workbook. The instructor's guide contains a…

This workbook is the third in a series of four student workbooks designed to prepare youth with the employability skills needed for the world of work. The four student workbooks contain all phases of employability skills in seven individual packages. This workbook on skills for job getting includes one learning package, which is divided into three…

This student guide is intended to assist persons employed as supervisors in learning to reduce costs. Discussed in the first four sections are the following topics: costs (functional, fixed, and variable costs and ways of controlling costs); cost consciousness (getting people involved, passing on information, and getting and giving feedback); and…

The focus of this book is on a rationale and a set of strategies for problem generation in mathematics. Six chapters attempt to involve readers in the process of posing problems and in understanding why that process is important. Chapter 1 discusses two problem posing perspectives, while chapter 2 looks at the first phase of problem posing. The…

The Program Standards Evaluation System was developed in response to evaluation requirements in the 1973 Rehabilitation Act. The system includes procedures for using standards data to monitor and evaluate vocational rehabilitation (VR) service outcomes and outputs as well as standards on key procedural issues. This trainee handbook has been…

This module, developed by the Research Applications for Teaching (RAFT) project, was written to assist students to write lesson plans that are effective and interactive. Students are given directions for the preparation of behavioral objectives and for the selection of appropriate instructional methodologies to meet the widely varying needs of…

This 16-hour course was designed to teach the minimum computer literacy objectives set forth by a mandate from the Virginia Board of Education. The course also prepares teachers to use the word processor. The inservice package is comprised of five units: (1) introduction to the computer; (2) computer-assisted instruction; (3) computer programming…

This issue of "Interchange" contains a reading, discussion questions, activities, and ideas to help educators teach secondary students and adults about immigration issues. Students are expected to read and discuss the reading entitled "Immigration: Questions and Answers." This reading analyzes the concerns about current levels of immigration and…

The determination of the thickness of a sludge blanket in primary and secondary clarifiers and in gravity thickness is important in making operational control decisions. Knowing the thickness and concentration will allow the operator to determine sludge volume and detention time. Designed for individuals who have completed National Pollutant…

The jar test is used to determine the proper chemical dosage required for good coagulation and flocculation of water. The test is commonly used in potable water, secondary effluent prior to advanced wastewater treatment, secondary clarifier influent, and sludge conditioning practice. Designed for individuals who have completed National Pollutant…

This module describes the process used to determine solids mass and location throughout a waste water treatment plant, explains how these values are used to determine the solids mass balance around single treatment units and the entire system, and presents calculations of solids in pounds and sludge units. The instructor's manual contains a…

Designed for individuals who have completed National Pollutant Discharge Elimination System (NPDES) level 1 laboratory training skills, this module on digestor gas analysis provides waste water treatment plant operators with the basic skills and information needed to: (1) successfully run the carbon dioxide analysis test; (2) accurately record…

A brief overview of the basic concepts and philosophies for sampling water and waste water systems is presented in this module. The module is not intended to specify sampling procedures, frequencies, or locations for specific treatment facilities but rather to outline those general procedures which should be followed when sampling under most…

Designed for individuals who have completed National Pollutant Discharge Elimination System (NPDES) level 1 laboratory training skills, this module provides waste water treatment plant operators with the basic skills and information needed to: (1) standardize a nephelometric turbidimeter; (2) determine the turbidity of a sample; and (3) calculate…

Designed to serve as a self-paced computer course for education students with no experience using microcomputers, this manual contains instructions for operating an Apple IIe microcomputer, its introductory software, and Bank Street Writer, using the DOS 3.3 System Master. The lessons, which contain illustrations and sample screens, include…